Full-screen Version
You can invoke PROC NETDRAW in full-screen mode by
specifying FS (or FULLSCREEN) in the PROC NETDRAW statement. The
statement specifications are the same as for the line-printer
mode. The full-screen mode offers you a convenient way to browse
the network diagram of the project and change the layout of the
network by moving the nodes of the network to desired locations.
However, you cannot move a node to any position that
violates the precedence constraints that must be satisfied by
the node. In other words, you cannot move a node to the left of
any of its predecessors or to the right of any of its
successors. For time-scaled network diagrams, you cannot move a node
out of the column corresponding to the value of the ALIGN= variable.
For zoned network diagrams you cannot move a node out of its
zone.
The format control options are treated in the same way as
for the line-printer version, with some minor changes. It is
assumed that the main purpose of invoking the procedure is to
gain a general picture of the layout of the entire network and to
modify it to some extent. In an effort to display as much of the
network as possible, the initial display on
the screen is drawn with only one row and three columns for each
node. In other words, the BOXHT=, BOXWIDTH=, XBETWEEN=, and YBETWEEN=
options are ignored by the procedure in drawing the initial
display. However, the full-screen commands supported by PROC
NETDRAW enable you to change the scale of the diagram. You can
display as much or as little information within each node by
invoking the SCALE ROW or the SCALE COL command or both. The SCALE
MAX command causes the procedure to display the diagram using
the values specified in the ACTNET statement or the dimensions
that would be required to display all the ID information,
whichever is larger. The SCALE RESET command returns the scaling
to the initial values used for display.
The nodes of the network are color coded on the basis of the
PATTERN variable. If there is no PATTERN variable, then the
nodes are color coded depending on
whether the activities are normal, critical, or supercritical.
The nodes are drawn in reverse video. By default, the nodes are
drawn without an outline; however, there is an OUTLINE command
that lets you toggle back and forth between an outlined or
non-outlined node. Using an outline for the node is useful if
you want to obtain a printout of the screen display using SPRINT;
it helps
mark the boundary of each node clearly.
Table 5.17 lists the
commands that can be invoked from the command line in the
full-screen version of PROC NETDRAW.
These commands are explained in greater detail in this section.
Table 5.17: Full-Screen Commands and Their Purposes
|
|
Controlling
|
Changing Network
|
|
|
Scrolling
|
Display
|
Layout
|
Exiting
|
| BACKWARD | OUTLINE | CLEAR | GEND |
| FORWARD | SCALE | MOVE | END |
| LEFT | | | CANCEL |
| RIGHT | | | |
| TOP | | | |
| BOTTOM | | | |
| VSCROLL | | | |
| HSCROLL | | | |
- BACKWARD
- scrolls towards the top of the network by the VSCROLL amount.
BACKWARD MAX scrolls to the top of the network. You can
specify the vertical scroll amount for the current command as
BACKWARD PAGE
|HALF|n.
- BOTTOM
- scrolls to the bottom of the network.
- CANCEL
- ends the current invocation of the procedure.
- CLEAR
- clears any outstanding move commands.
- GEND
- ends the current invocation of the procedure after drawing
the network in graphics mode with the compress option.
- END
- ends the current invocation of the procedure.
- FORWARD
- scrolls toward the bottom of the network by the VSCROLL
amount. FORWARD MAX scrolls to the bottom of the network. You can
also specify the vertical scroll amount for the current command
as FORWARD PAGE
|HALF|n.
- HELP
- displays a help screen listing all the full-screen commands
specific to PROC NETDRAW.
- HOME
- moves the cursor to the command line.
- HSCROLL
- sets the amount that information scrolls horizontally when
you execute the LEFT or RIGHT command. The format is HSCROLL
PAGE
|HALF|n. The specification is assumed
to be in
number of horizontal levels. HSCROLL PAGE sets the scroll amount
to be the number of horizontal levels that fit on one screen;
HSCROLL HALF is half that amount; HSCROLL n sets the
horizontal scroll amount to n levels.
- KEYS
- displays current function key settings for the NETDRAW procedure.
- LEFT
- scrolls toward the left boundary of the network by the
HSCROLL amount. LEFT MAX scrolls to the left boundary. You can
specify the horizontal scroll amount for the current command as
LEFT PAGE
|HALF|n.
- MOVE
- specifies a node to be moved or a place to move a node to.
You can specify these in any order. Thus, you can first position
the cursor on the node that you want to move, issue the MOVE
command, and then position the cursor at a target position and
issue the MOVE command again. If the target position is valid,
the node is moved. You can also first specify the target position and
then indicate the node that is to be moved.
Note: For a standard network, a node cannot be moved to any
position that violates
the topological ordering of the nodes in the network. For
time-scaled network diagrams, you cannot move a node to a level
corresponding to a different tick mark. For zoned network diagrams,
you cannot move a node out of its zone.
- OUTLINE
- causes an outline to be drawn around each node in the
network. This is useful if you want to print a copy of the
screen by using the SPRINT command. The OUTLINE command works
like an on/off switch: you can turn it off by entering the
command again.
- RIGHT
- scrolls toward the right boundary of the network by the
HSCROLL amount. RIGHT MAX scrolls to the right boundary. You can
also specify the horizontal scroll amount for the current
command as RIGHT PAGE
|HALF|n.
- SCALE
- controls the scaling of the nodes and the space between nodes.
The format of this command is
SCALE MAX
|MIN|RESET|ROW
MAX|COL MAX|ROW MIN|COL
MIN|ROW n |COL
n|+n|-n.
The number n denotes
the number of character positions. SCALE MIN displays as many
nodes on the screen as can fit. SCALE MAX allows as many rows
and columns per node as is required to display all the
information that pertains to it. SCALE ROW MAX displays the
maximum number of rows per node. SCALE COL MAX displays the
maximum number of columns per node. SCALE ROW n sets
the number of rows per node to n.
SCALE ROW +n increases the number of rows per node
by n. SCALE COL n
sets the number of columns per node to n.
SCALE COL +n increases
the number of columns per node by n.
SCALE RESET sets
the values to be the same as for the initial display. Note that
none of these values can be greater than the dimensions of the
screen.
- TOP
- scrolls to the top of the network.
- VSCROLL
- sets the amount by which information scrolls vertically when you
execute the BACKWARD or FORWARD command. The format is VSCROLL
PAGE
|HALF|n. The specification is
assumed to be in
number of vertical levels. VSCROLL PAGE sets the scroll amount
to be the number of vertical levels that fit on one screen;
VSCROLL HALF is half that amount; VSCROLL n sets the
vertical scroll amount to n levels.
Most of the global commands used in SAS/FSP software are
also valid with PROC NETDRAW.
Some of the
commands used for printing screens are described in
the "Global Commands" section of Chapter 4, "The GANTT Procedure."
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
